57506402 has 8 divisors (see below), whose sum is σ = 86386512. Its totient is φ = 28710900.

The previous prime is 57506389. The next prime is 57506413. The reversal of 57506402 is 20460575.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×57506402³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19424 + ... + 22187.

It is an arithmetic number, because the mean of its divisors is an integer number (10798314).

Almost surely, 2^57506402 is an apocalyptic number.

57506402 is a deficient number, since it is larger than the sum of its proper divisors (28880110).

57506402 is a wasteful number, since it uses less digits than its factorization.

57506402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42304.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 57506402 is about 7583.2975676812. The cubic root of 57506402 is about 385.9864555370.

Adding to 57506402 its reverse (20460575), we get a palindrome (77966977).

The spelling of 57506402 in words is "fifty-seven million, five hundred six thousand, four hundred two".